Am 15.02.2021 um 18:08 schrieb Ryan Joseph via fpc-pascal:
On Feb 15, 2021, at 9:08 AM, Marcos Douglas B. Santos via fpc-pascal
<fpc-pascal@lists.freepascal.org> wrote:
As I understand, this is not a method hiding, but just to tell the
compiler which method to implement the interface—the interface could
have method names which are very very common to use and this syntax
allows us to "rename" those methods without changing the original
names that the class might have.
yeah you may be right, that the interface object itself won't be hookup
correctly if this doesn't happen. Seems strange you have 2 declarations for the
same method though.
procedure IMyIntf.Test2 = MyTest2;
propcedure MyTest2;
instead of something like:
propcedure MyTest2 override IMyIntf.Test2;
Because the first one is much more powerful. As Marco said, you can
reference a method in the parent class. Also you can redirect different
interface methods to the same method:
=== code begin ===
type
IMyIntf1 = interface
procedure Foo;
end;
IMyIntf2 = interface
procedure Bar;
end;
TMyClass = class(TInterfacedObject, IMyIntf1, IMyIntf2)
public
procedure IMyIntf1.Foo = Foobar;
procedure IMyIntf2.Bar = Foobar;
procedure Foobar;
end;
=== code end ===
Regards,
Sven
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